Omron E5EK, User Manual

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CHAPTER 5 PARAMETERS
E5EK
5--26
LBA detection time
Conditions of Use
The LBA (Loop Break Alarm) function
must be assigned as an output.
•
This parameter is automatically set by AT execution.
•
The LBA is output if the change width of the process value falls below 0.2 %full-
scale of the time preset to this parameter when the manipulated variable is set in
the “MV upper limit” or “MV lower limit” parameters.
•
The LBA function is disabled when this parameter is set to “0”.
Setting Range
Unit Default
0 to 9999 Second 0
F
Related description
4.10 LBA (page 4-20)
8.3 How to Use Error Output (page 8-5)
F
Related parameters
“AT Execute/Cancel” (level 1 mode)
“Control output 1 assignment” “Control output 2 assignment” “Auxiliary output
1 assignment” “Auxiliary output 2 assignment” (setup mode)
MV at reset
MV at PV error
Conditions of Use
Advanced PID control.
•
The “MV at reset” parameter sets the manipulated variable when operation has
stopped on a standard type controller. On a position-proportional type controller,
this parameter sets the action (close/hold/open) when operation has stopped.
•
The “MV at PV error” parameter sets the manipulated variable when an input
error occurs. On a position-proportional type controller, this parameter sets the
action (close/hold/open) when an input error occurs.
•
Standard type
Control Method Setting Range Unit Default
Standard -5.0 to 105.0 % 0.0
Heating and cooling -105.0 to 105.0 % 0.0
The manipulated variable at the cooling side during heating and cooling control is
expressed as a negative value.
•
Position-proportional type
Setting Range Unit Default
“ ”: Hold/“ ”: Open/“ ”: Close None
F
Related description
MV at reset : 3.7 Starting and Stopping Operation (page 3-21)
MV at PV error : 8.2 How to Use the Error Display (page 8-3)
Level 2 Mode
Function
Setting
See
Function
Setting
See